<?php

/*
 * Plugin Name: 1984 Hosting Support
 * Version: 1.1.0
 * Author: 1984 ehf.
 * Author URI: https://1984.hosting
 * Description: Support plugin for 1984 Hosting customers.
 * Update URI: https://git.1984.is/1984/1984-hosting-support/
 * Text Domain: hostingsupport1984
 * Domain Path: /languages
 */

/**
 * The main HostingSupport1984 class
 *
 * @package HostingSupport1984
 * @license https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html GNU General Public License v2.0
 *
 * This is where basic constants such as the version number are pulled from.
 * There are other classes that may depend on this file, so only remove it if
 * you do not intend to use the plugin.
 */
class HostingSupport1984
{
	const HOSTING_SUPPORT_VERSION = '0.4.0';

	/**
	 * Construct a new HostingSupport1984 object
	 */
	public function __construct()
	{
		// Loading the text domain for a mu-plugin is tricky.
		// We need to use admin_init instead of plugins_loaded as we are only
		// using the plugin in the admin interface.
		add_action(
			'admin_init',
			array($this,
			      'load_textdomain')
		);

		// Register the activation hook.
		register_activation_hook(
			__FILE__,
			array($this,
			      'activation_hook')
		);

		// Run on activation of any plugin.
		add_action(
			'activated_plugin',
			array($this,
			      'plugin_activation_hook')
		);

		// Run on activation of theme.
		add_action(
			'switch_theme',
			array($this,
			      'theme_switch_hook')
		);

		// Add a clear warning on the Patchstack plugin row to discourage removal.
		add_filter(
			'plugin_row_meta',
			array($this,
			      'add_patchstack_warning_row_meta'),
			10,
			2
		);

		// Prevent deactivation/deletion of this plugin and Patchstack via UI links.
		add_filter(
			'plugin_action_links',
			array($this,
			      'filter_plugin_action_links'),
			10,
			4
		);
		add_filter(
			'network_admin_plugin_action_links',
			array($this,
			      'filter_plugin_action_links'),
			10,
			4
		);

		// Guard against direct requests (single and bulk) on Plugins screens and updater endpoints.
		add_action('load-plugins.php', array($this,
		                                     'protect_plugins_admin_actions'));
		add_action('load-plugins-network.php', array($this,
		                                             'protect_plugins_admin_actions'));
		add_action('load-update.php', array($this,
		                                    'protect_plugins_admin_actions'));
	}

	/**
	 * Load the 'hosting_support_1984' text domain
	 *
	 * @return Boolean
	 */
	public function load_textdomain(): bool
	{
		return load_plugin_textdomain(
			'hostingsupport1984',
			false,
			'1984-hosting-support/languages'
		);
	}

	/**
	 * On activation of this plugin, set auto-update option for core,
	 * plus enable auto-updates for installed plugins and themes.
	 *
	 * This is skipped if Patchstack is active on the site.
	 */
	public function activation_hook()
	{
		if ($this->is_patchstack_active()) {
			// In case Patchstack is active, do not continue.
			return;
		}

		// Auto-update WordPress core.
		update_site_option('auto_update_core_major', 'enabled');

		// Auto-update plugins.
		$all_plugins = apply_filters('all_plugins', get_plugins());

		update_site_option('auto_update_plugins', array_keys($all_plugins));

		// Auto-update themes.
		$all_themes = wp_get_themes();
		update_site_option('auto_update_themes', array_keys($all_themes));
	}

	/**
	 * Check if Patchstack is enabled.
	 *
	 * @return Boolean
	 */
	public function is_patchstack_active()
	{
		return is_plugin_active('patchstack/patchstack.php');
	}

	/**
	 * On plugin activation, add to auto-updated list of plugins.
	 *
	 * This is skipped if Patchstack is active on the site.
	 */
	public function plugin_activation_hook($plugin)
	{
		if ($this->is_patchstack_active()) {
			// In case Patchstack is active, do not continue.
			return;
		}

		$auto_updated_plugins = (array)get_site_option('auto_update_plugins', array());
		$auto_updated_plugins[] = $plugin;

		update_site_option('auto_update_plugins', array_unique($auto_updated_plugins));
	}

	/**
	 * On theme switch, enable auto-update for all themes.
	 *
	 * This is skipped if Patchstack is active on the site.
	 */
	public function theme_switch_hook($theme)
	{
		if ($this->is_patchstack_active()) {
			// In case Patchstack is active, do not continue.
			return;
		}

		$all_themes = wp_get_themes();
		update_site_option('auto_update_themes', array_keys($all_themes));
	}

	/**
	 * Append a prominent warning to the Patchstack plugin row in the Plugins screen.
	 *
	 * @param array  $links Existing row meta links.
	 * @param string $file  Plugin file path about plugins directory.
	 *
	 * @return array Modified row meta-links.
	 */
	public function add_patchstack_warning_row_meta(array $links, string $file): array
	{
		// Only show the warning on the Patchstack row AND only if Patchstack is active.
		if ('patchstack/patchstack.php' !== $file || !$this->is_patchstack_active()) {
			return $links;
		}

		$warning_text =
			__('1984 Hosting: Please do not deactivate or delete this plugin - part of your WordPress Service Pack.', 'hostingsupport1984');

		$logo_1984_url = plugins_url('icons/1984-hosting-logo.webp', __FILE__);
		$logo_patchstack = plugins_url('icons/patchstack-logo.svg', __FILE__);

		$title_1984 = __('Visit 1984 Hosting Homepage', 'hostingsupport1984');
		$title_patchstack = __('Visit Patchstack Homepage', 'hostingsupport1984');

		$container_open =
			'<span class="description" style="color:#b32d2e;font-weight:700;display:inline-grid;grid-template-columns:auto 1fr;column-gap:6px;row-gap:4px;align-items:center;line-height:1.5;vertical-align:middle;">';

		$warning_icon =
			'<span class="dashicons dashicons-warning" aria-hidden="true" style="color:#b32d2e;grid-column:1;"></span>';

		$text_html = '<span style="grid-column:2;">' . esc_html($warning_text) . '</span>';


		$logos_html =
			'<span style="grid-column:2;display:inline-flex;align-items:center;gap:4px;">'
			.
			'<a href="https://1984.hosting" target="_blank" rel="noopener noreferrer" title="' . esc_attr($title_1984) . '" aria-label="' . esc_attr($title_1984) . '">'
			.
			'<img src="' . esc_url($logo_1984_url) . '" alt="1984 Hosting" style="height:16px;width:auto;display:inline-block;" />'
			.
			'</a>'
			.
			'<a href="https://patchstack.com" target="_blank" rel="noopener noreferrer" title="' . esc_attr($title_patchstack) . '" aria-label="' . esc_attr($title_patchstack) . '">'
			.
			'<img src="' . esc_url($logo_patchstack) . '" alt="Patchstack" style="height:16px;width:auto;display:inline-block;" />'
			.
			'</a>'
			.
			'</span>';

		$links[] = $container_open . $warning_icon . $text_html . $logos_html . '</span>';

		return $links;
	}

	/**
	 * Remove Deactivate/Delete action links for protected plugins (single and network admin).
	 *
	 * @param array  $actions
	 * @param string $plugin_file
	 * @param array  $plugin_data
	 * @param string $context
	 *
	 * @return array
	 */
	public function filter_plugin_action_links(array  $actions, string $plugin_file, array $plugin_data,
	                                           string $context): array
	{
		if ($this->is_protected_plugin($plugin_file)) {
			unset($actions['deactivate']);
			unset($actions['delete']);
		}

		return $actions;
	}

	/**
	 * Determine if a plugin file is in the protected list.
	 *
	 * @param string $plugin_file
	 *
	 * @return bool
	 */
	private function is_protected_plugin(string $plugin_file): bool
	{
		return in_array($plugin_file, $this->get_protected_plugins(), true);
	}

	/**
	 * Return plugin basenames that must be protected from deactivation/deletion.
	 *
	 * @return string[]
	 */
	private function get_protected_plugins(): array
	{
		$own = plugin_basename(__FILE__);
		return array(
			$own,
			'patchstack/patchstack.php',
		);
	}

	/**
	 * Intercept admin actions attempting to deactivate or delete protected plugins and block them.
	 */
	public function protect_plugins_admin_actions()
	{
		// Collect requested action(s).
		$action = isset($_REQUEST['action']) ? sanitize_key((string)$_REQUEST['action']) : '';
		$action2 = isset($_REQUEST['action2']) ? sanitize_key((string)$_REQUEST['action2']) : '';

		$targets = array();
		if (!empty($_REQUEST['plugin'])) {
			$targets[] = sanitize_text_field((string)$_REQUEST['plugin']);
		}
		if (!empty($_REQUEST['checked']) && is_array($_REQUEST['checked'])) {
			foreach ($_REQUEST['checked'] as $pf) {
				$targets[] = sanitize_text_field((string)$pf);
			}
		}

		if (empty($targets)) {
			return;
		}

		$blocked_actions = array(
			'deactivate',
			'deactivate-selected',
			'delete',
			'delete-selected',
			'delete-plugin',
		);

		if (!in_array($action, $blocked_actions, true) && !in_array($action2, $blocked_actions, true)) {
			return;
		}

		$protected = $this->get_protected_plugins();
		$intersect = array_intersect($targets, $protected);
		if (!empty($intersect)) {
			wp_die(
				__('For security, this action is blocked: 1984 Hosting Support and Patchstack cannot be deactivated or deleted while this policy is active.', 'hostingsupport1984'),
				403
			);
		}
	}
}

$hosting_support_1984 = new HostingSupport1984();

const A1984_HOSTING_SUPPORT_BASE_FILE = __FILE__;

require_once __DIR__ . '/1984-hosting-support-ui.php';